| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Frisch geschieden | 978-3-442-07950-6 (3-442-07950-0) | 1997 | |
| The Quigmans: Tunnel of Just Friends | 978-1-56858-083-8 (1-56858-083-5) | 1996 | |
| The Quigmans: Tunnel of Just Friends | 978-1-56858-100-2 (1-56858-100-9) | 1996 |